Aleric Jackson is the Rams best option for the 2024 season. Left Tackle (LT) is more of a long-term issue. Like QB, LT is one position where I really think it is nice to have long-term stability and the Rams do not have that (YET) with Jackson.
It remains to be seen if Jackson is the long-term answer. He is in a contract year, so this is his chance to prove it. Jackson has been good enough and provides stability for 2024 but beyond that is where the potential problem arises. I am reluctant to see the Rams pony up the premium LT money and only get an average LT. Even though Noteboom is still on the team (mainly due to the burdensome contract) he is not worth what he has been paid. In fact, I think Boom's resigning was one of the team's bigger mistakes that snowballed (monetarily and on the field) into the death spiral of the 2022 season. To me Boom's resigning should be a cautionary tale to the front office before deciding to extend Jackson. In a way the Rams have painted themselves into corner of probably having to pay AJ big bucks next year. Relying on finding a Rookie LT in 2025 especially in the back of the first round is very risky (Of course Greg Robinson proved even drafting one number 2 is risky). Also, replacing him with a free agent LT would be costly and usually LT 's only hit the open market if they have injury and/or age issues or they are just not deemed good enough by their former team to extend and invest the big dollars that position usually requires.
Note: Whitworth was a bit of an outlier at the position and the Rams were fortunate to get him. The only reason he was on the market is because of his age and the fact that Bengals are notoriously cheap. Even though he worked out fabulously I remember a lot of people saying the Rams overpaid for him due to his age when they first signed him.
Note 2: After saying all that, the NFL is a year to year and even a game-to-game proposition. You never know when that career ending injury can strike a player. So, there is NO real long-term stability at any position. Such is life!